spiroindol>-2'(1'H)-one 、
2-(chloromethyl)-1-isopentyl-1H-benzo[d]imidazole hydrochloride 以to provide 69 mg (0.18 mmol, 32%) of the desired compound as a colourless solid的产率得到1'-((1-isopentyl-1H-benzo[d]imidazol-2-yl)methyl)spiro[cyclobutane-1,3'-indolin]-2'-one